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WLHS / AP Bio / Monson
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YOUR INNER FISH: Episode 2: Your Inner Reptile
1) What was the “real gem” found in the brown sandstone rock?
How old was it?
2) What kind of animal was the “tritheledont”?
3) How long ago did the first fish-like creature crawl onto land?
4) What challenges did our reptilian ancestors face?
5) What features are visible in an 8-week old human fetus?
6) What is the function of the amnion & amniotic fluid?
7) What is the challenge with egg-laying on land?
8) How do amphibians deal with this challenge?
How do reptiles deal
with this challenge?
9) What did researchers find with respect to the “yolk” genes in the human genome?
What is the significance of humans having these genes?
10) How does reptilian skin reflect adaptation for life on land?
11) How is our skin similar to / different than the skin of reptiles?
12) The fossils discovered in South Africa represent important animals known as:
13) For which purpose are reptile teeth best suited?
14) How do the teeth of Gorgonopsids differ from those of reptiles?
15) What are two adaptations have that allow for one adult set of teeth to last a lifetime?
16) What is the major benefit of a mass extinction?
17) What is the likely reason that hair first evolved?
18) Millions of years later, hair was used for what new purpose?
19) What body parts grow out of skin?
20) What is the function of the gene known as EDA?
21) What problems are experienced by the actor who has a mutation in his EDA gene?
22) How are mammal ears different from those of our reptilian ancestors?
23) Hadrocodium is regarded as one of the earliest
24) What was unique about the brain of Hadrocodium?
25) What challenges did mammals of 195 million years ago face?
26) When did dinosaurs become extinct?
27) What happened to mammals after the dinosaurs disappeared?
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